The invention discloses a multi-pulley telescopic mechanism, and belongs to the technical field of cranes. The multi-pulley telescopic mechanism comprises a telescopic mechanism body, a first telescopic arm traction rope, a second telescopic arm traction rope, a third telescopic arm traction rope, a basic arm, a second-section arm, a third-section arm, a fourth-section arm and a fifth-section arm, wherein the second-section arm, the third-section arm, the fourth-section arm and the fifth-section arm are sequentially embedded in the basic arm. The invention further discloses a crane. The crane comprises the multi-pulley telescopic mechanism. According to the multi-pulley telescopic mechanism and the crane, the technical problems that in the prior art, a five-section-arm crane is high in cost and low in telescopic efficiency, and the hoisting weight is seriously limited are solved.

    本发明公开了一种多滑轮伸缩机构,属于起重机技术领域。多滑轮伸缩机构包括伸缩机构、第一伸臂牵绳、第二伸臂牵绳、第三伸臂牵绳、基本臂以及依次嵌设于基本臂内的二节臂、三节臂、四节臂和五节臂。本发明还公开了一种起重机,起重机包括前述的多滑轮伸缩机构。本发明通过提供一种多滑轮伸缩机构及起重机,解决了现有技术中五节臂起重机成本较高,伸缩效率较低,严重限制吊起重量的技术问题。


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    Title :

    Multi-pulley telescopic mechanism and crane


    Additional title:

    一种多滑轮伸缩机构及起重机


    Contributors:
    MA SHANHUA (author) / CHEN SUXUN (author) / ZHU WEI (author) / ZHANG YANWEI (author)

    Publication date :

    2022-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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